Orthopedic device



May 16, 1933. N. M. OEHLBERG 1,909,002

JRTHOPEDIC DEVICE Filed DeC. 3l. 1930 2 Sheets-Sheet 2 lll' v gm yPatented May 16, 1933r Y iJNiT-ED STATES,

NICHGLAS M'. OEHLBERG, OF CHICAGO, ILLINOIS ORTHOPEDIC DEVICE iApplication led December'Sl, 1930. Serial N0. 505,755. l

My present invention relates to the provision of improvements inlorthopedic devices,and an object of` my invention is to.

provide a device for the correction of various inequalities andweaknesses of the humanr to provide a device j body, and particularlwhich may be used or balancing the two sides of the body, namely, theright and left sides. It is well known that many children ,lo are weakin some manner and strong in others, and my present invention may beused under proper instructions and `Care to correct such conditions.Another object of the invention is to provide a simple device of thecharacter described, in that it is easy to manufacture and easy tomaintain.

A further object is the provision of a device of the character describedvwhich may be used to correct an abnormality of the legs o or arms, theright leg and right'arm when the left side is normal, the right leg andleft arm when the remaining members arenarmal, and various othercombinations of weaknesses.

Other objects will appear hereinafter.

In the drawings,-

Fig. 1 is a perspective view of one form of my device;

Fig. 2 is a section view, taken substantiallyy V on the line 2 2 of Fig.1;

Fig. 3 is a view partially in section and partially in elevation, thesectional portion being taken `substantially on the line 3 3 of Fig. 2;

section are shown substantiallyon thevline 4 4 of Fig. 3;

Fig. 5 is a detail View, partly in sectiony land kpartly in elevation,and taken substantially on the line 5 5 of Fig. 1;

Fig. 6 is a detail view of the seat or saddle wheel, and the parts insection show there-H cesses of the shaft which are adapted to re- 50.Ceive a bolt from the crank arm in order to Each shaft is provided withrecesses 21 for Fig. 4 is a detail view of the sprocket wheel, sliaftand other parts, and the portions in' .which are widened and graduallyconverge to y Washer or indicator in the same relative posi- -hold thecrank arm on the shaft in a rigid manner; y y

Fig. 8 is a detailview of the shaft and manner of attaching a cranky armso that the shaft and crank arm will turn as one unit;

and

Fig. 9 is a view partly in section and partly in elevation, takenysubstantially on the line 9 9 of Fig. 8.

Referring more particularlyto the drawings, this form of my invention isprovided with a frame or supporting member 10, seat or saddle 11, saddlepost 12, crank arms 13 for use by the hands, and crank or pedal arms 14yfor use by the feet. A housing 15 is pro- 65 vided for the covering kofthesprocket wheel, chain and other portions of the present form of mydevice. Suitable handles 16 and suitable pedals 17 rare provided for theuse by the person employing the device.4 It can be seen that thepresentrform of my device is provided with two saddles and may be usedby two persons jointly, that is, onefperson employing a handle andpedal, or another combinatlon of these.

In Figs. 2, 3, 4, 7, 8, and 9 the internal working parts of the deviceare shown clearly and the Vdevice is provided with a suitable sprocket.wheely 18, shaft 19, and chain 20.

the reception of bolts 22 which extend `through crank arms 13 and 14andmaintain vthe crank arms yin such a manner that `they Will turnwith theshaft, or upon the disengagement of bolts 22 the shaft may turnindependently of the crank arms. As rshown more clearly in Figs.`8 and9, recesses 21 are rendered' more accessible and more easily found bytheprovision of inclined surfaces 23 the size of recesses 21 these inclinedsurfaces 23are desirable for the purpose of effecting a more readyengagement of the bolts by the recesses 21. In order to facilitate thevlast mentioned operation, that is, in engaging the shaft by bolts 22,lan indicator'or washer 24 provided with a lug 25 vfor designating theposition'at whichl the shaft is'located at anyl particularA timeand rinorder to maintain this tion appropriate lug portion 26 on the was er isengaged by a recessed slot 27 of shaft 19; that is, the indicator ismaintained at all times in the same position on the shaft. Suitableanti-friction ball races 28 may be provided for the reduction offriction in the turning of the shaft. Y

The crank arms are maintained on the shaft by means of bolts 29 whichare provided with enlarged heads which may be used for the purpose ofholding the shaft in a particular location while bolts 22 are turnedinto recesses 21. It can be seen that there are two recesses in eachshaft, and they are vlocated approximately 180 degrees from each otherso that they are on opposite sides of the shafts.

For the provision of a device which may be used by different sizedindividuals, saddle vided for sustaining the. weight of the shaft forthe upper crank arms, as distinguished from the pedal arms. As can beseen in Fig. 1, housing 15 is also provided with lugs or ears 35 whichare suitably slotted, and plates 34 are tapped to receive a bolt throughears 35 for the purpose of holding the shaft from upward movement.`Plate 34, as viewed from the right of Fig. 1, is removable and may beremoved by disengagin g bolts 36' from appropriately tapped portions ofvthe top bar or frame 10. Housing 15 is also provided with L-shaped lugs37 which are adapted also to hold housing 15 and parts within it fromvertical movement. The lower cup-like portions of housing l5 are alsoprovided with ears or lugs 38 which are provided with appropriate slotsthrough which are adapted to .bereceived bolts for engagement byappropriately tapped recesses in the lower bar members of frame 10.

As can be seen from the foregoing description, my device may be used forgiving eXerf cise to the arms and legs, and because of the provision ofoppositely positioned recesses in thAe shafts, the device may beadjusted to respond to what might be termed reciprocatory motion, thatis, with one hand and one foot up and one hand and one foot down, or byproper adjustment these movements may be changed to what may be termedunisonous movement, that is, movement by having both hands in the samevertical position and the feet likewise in the same vertical position.In order to effect the last mentioned adjustment, it is necessaryonly toloosen bolts 22, turn crank arms'l and pedal arms 14` into similarpositions. If the particular individual is weak on the left side andnormal on the right side, the crank arms and ped-al arms of the rightside may be disengaged by disengaging bolts 22 on the right side, andthus leaving them free. It can be seen that the left side only wouldthen be turned with shaft 33.

For the correction of certain deficiencies of the body it is desirableto reverse the movements of exercises, making the movements what mightbe termed reciprocatory, and also to make them whatmight be termedunisonous, as above described. My device may be used for all thesemovements for shafts 19, and sprockets 18 may be turned in eitherdirection.V and the reciprocatory and unisonous movement may be providedfor as before described.

Two individuals mayuse the device at the same time for the exercising oftheir respective right members and their left members,

vand thus for children an element of amusement or sport may be found inusing the device.

While Ihave described and illustrated one form of construction forcarrying my invention into effect, it is capable of variation andmodification without departing from the spirit of the invention, and Itherefore do not wish to be limited to the precise details ofconstruction as set forth, but desire to avail: myself of suchvariations and modifications as come within the spirit of the invention.

I What I claim as new and desire to secure by Letters Patent is:

A device of the character described comprising a frame, a seat mountedon said frame, means on said frame for supporting ashaft, a shaftsupported by said means, a sprocket wheel affixed to said shaft, two

sockets in and adjacent each end of said shaft into either of saidoppositely placed sockets. L

In testimony whereof I have signed my name to this specification.

NICHOLAS M. OEHLBERG.

